| Guemesia | |
|---|---|
 | |
| Drawing ofGuemesia ochoai | |
Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Family: | †Abelisauridae |
| Genus: | †Guemesia Agnolínet al.,2022 |
| Species: | †G. ochoai |
| Binomial name | |
| †Guemesia ochoai Agnolínet al., 2022 | |
Guemesia (named afterMartín Miguel de Güemes, whose death bicentenary was in 2021) is a genus ofabelisauriddinosaur from theLate CretaceousLos Blanquitos Formation ofSalta Province,Argentina. The type and only species isGuemesia ochoai, known from a nearly complete braincase. It is one of the smallest abelisaurids currently known.[1]
Theholotype ofGuemesia,IBIGEO-P 103, is a small, nearly complete braincase. It was found in the Los Blanquitos Formation, in theAmblayo Valley of Salta Province, Argentina. The specimen was described in 2022 by Agnolínet al. as belonging to a new genus and species of abelisaurid dinosaur, and the first dinosaur of its kind known from the area.[1]
Agnolínet al. placeGuemesia as a derived abelisaurid within the clade Brachyrostra.[1]
Guemesia is known from theLos Blanquitos Formation. The controversialtetanuran theropodUnquillosaurus is also known from this formation,[2] as well as fossils of what may belong to a species ofTitanosaurus.[3][1]
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